Frederick Griffith discovered:
1. | DNA is the genetic material |
2. | RNA can be the genetic material |
3. | Streptococcus has two strains |
4. | Bacterial transformation |
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In Avery, Macleod, and McCarty's experiment, the transformation of bacteria was inhibited by:
1. | Proteases | 2. | RNase |
3. | DNAs | 4. | None of these |
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Which of the following is a pyrimidine base found in DNA?
1. | Adenine | 2. | Guanine |
3. | Uracil | 4. | Cytosine |
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Which of the following is also called soluble RNA?
1. | tRNA | 2. | rRNA |
3. | mRNA | 4. | siRNA |
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A typical nucleosome unit consists of about:
1. | 60 base pairs | 2. | 140 base pairs |
3. | 200 base pairs | 4. | 400 base pairs |
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At any instant, RNA is transcribed on which of the following strands of DNA?
1. | Coding strand | 2. | Template strand |
3. | Lagging strand | 4. | Leading strand |
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To form a nucleoside, a nitrogenous base is linked to a pentose sugar:
1. | Through a P-Glycosidic linkage at carbon atom number 1 |
2. | Through a P-Glycosidic linkage at carbon atom number 5 |
3. | Through an N-Glycosidic linkage at carbon atom number 1 |
4. | Through an N-Glycosidic linkage at carbon atom number 5 |
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Nucleosomes constitute the repeating subunits of a structure in the nucleus called:
1. | Nucleoid | 2. | Chromatid |
3. | Solenoid | 4. | Chromatin |
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Which of the following is true for both transcription and DNA replication?
1. | The principle of complementarity governs the processes |
2. | Only if the two strands act as a template |
3. | Only a segment of both strands is involved |
4. | Adenine base pairs with thymine |
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The structure of the ribosome is made of:
1. | rRNA and Proteins |
2. | rRNA and Polysaccharides |
3. | mRNA, rRNA and tRNA |
4. | RNA, DNA and Proteins |
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